The Volvo V60 Cross Country fog light requires a P21W bulb size for proper installation and operation within the front lighting assembly. Data for the specified lighting component covers the range from 2015 to 2016.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Volvo V60 Cross Country front fog light uses the P21W bulb for the 2015-2016 model years.
The P21W is an ECE-standard single-filament signalling bulb operating at 12V and 21W, fitted with a BA15s bayonet base.
The BA15s base is a single-contact bayonet fitting, meaning it is not interchangeable with dual-contact BA15d variants despite sharing the same physical bayonet collar size.
The rear fog light on the V60 Cross Country uses the H21W bulb across the 2015-2018 model years.
The H21W is also an ECE-standard single-filament signalling bulb rated at 12V and 21W, but it uses a BAY9s base rather than the BA15s found on the P21W.
The BAY9s base features offset pins that prevent incorrect installation, as the asymmetrical pin placement ensures only the correct bulb orientation is accepted by the socket.
Although the P21W and H21W share identical voltage and wattage ratings, their bases are physically incompatible, and one cannot substitute for the other.
Both bulb types conform to ECE regulations, which are applied across European and worldwide markets, reflecting the V60 Cross Country's intended distribution regions.